Home / 22,413.76-30,931.68-16,815.04

Finding the Fourth Proportional to 22,413.76, 30,931.68 and 16,815.04

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Solution

The fourth proportional to 22,413.76, 30,931.68 and 16,815.04 is: 23,205.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,413.76 : 30,931.68 = 16,815.04 : x
  2. Step 2: Convert to fraction form
    22,413.76/30,931.68 = 16,815.04/x
  3. Step 3: Cross multiply
    22,413.76x = 30,931.68 × 16,815.04
  4. Step 4: Simplify right side
    22,413.76x = 520,117,436.47
  5. Step 5: Solve for x
    x = 520,117,436.47/22,413.76
  6. Step 6: Final answer
    x = 23,205.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.